Durga Puja 2025 Calendar: West Bengal’s Grand Festival Guide Durga Puja, the most celebrated festival in West Bengal , is a vibrant blend of devotion, culture, and grandeur. In 2025 , this five-day extravaganza will captivate millions globally, especially the Bengali diaspora in the USA, UK, Canada, Australia, and beyond . If you're planning to experience Durga Puja in West Bengal or virtually , this 2025 calendar guide will help you stay updated with key dates, rituals, and events. Durga Puja 2025: Key Dates & Calendar Durga Puja follows the Hindu lunar calendar , so dates vary yearly. In 2025 , the festival will be observed from September 29 to October 3 . Event Date (2025) Day Significance Mahalaya September 22 Monday Marks the beginning of Devi Paksha Shashthi September 29 Monday Goddess Durga’s arrival Saptami September 30 Tuesday Rituals & cultural programs begin Ashtami October 1 Wednesday Sandhi Puja (most sacr...